How did the crash of the u. s stock makret affect germany and other europeans countries?

Because american investors who were pulling loaning to germany began pulling money out of germany and to invest in the stock market 

The embargo act of 1807  was a law passed by the united state congress and signed by president thomas jefferson on december 22,  1807. it prohibited american ships from trading in all foreign ports. in 1806, france passed a law that prohibited trade between neutral parties, like the u.s., and britain.